Combined throttle and mixing device for internal-combustion engines.



H. w. A LLEN. COMBINED THROTTLE AND MIXING DEVICE FOR INTERNALCOMBUSTION ENGINESi APPLICATION FILED FEB- I'I', 1916.

I ,Wfifififl. I Patented Oct. 24, 1916.

twlu

m: mums Fsrzns can Pnomu ma. WASMINCYON, n. c.

HERBERT W. ALLEN, OF COALINGA, CALIFORNIA.

COMBINED THROTTLE AND MIXING DEVICE FOR INTERNAL-COMBUSTION ENGINES.

Application filed February 17, 1916.

To all whom it may concern Be it known that I, HERBERT W. ALLEN,

a citizen of the United States, and a resi-' dent of Coalinga, in thecounty 'of'Fresno and State of California, have invented a new anduseful Improvement in Combined Throttle and Mixing Devices for Internal-Combustion Engines, of which the following is a specification.

My invention is an improvement in combined throttle and mixing devicesfor internal combustion engines, and the invention has for its object toprovide mechanism of the character specified, adapted to be arrangedbetween the carbureter' and the engine and provided with means forthoroughly mixing the several elements of the explosive charge to make ahomogeneous mixture, and wherein the said means is controllable at willfor varying the amount of the mixture passing.

In the drawings :Figure 1 is a longitudinal vertical section of theimproved device, Fig. 2 is a section on the line 2-2 of Fig. 1, lookingin the direction of the arrows adjacent to the line, Fig. 3 is aperspective view of the mixing sleeve, Fig. 4 is an enlarged sectionshowing the arrangement of the perforate sheets, and Fig. 5 is a similarview showing a modified arrangement.

The present embodiment of the invention comprises a casing 1 which isopen at opp0- site ends, laterally extending ears or lugs 2 and 3 beingprovided adjacent to the openings. The cars 2 and 3 are drilled andtapped for convenient connection to the engine manifold and thecarbureter respectively. Disposed within the casing 1 is a transversearched portion 4 (Fig. l) which is located adjacent to the enginemanifold openings 25 the arch 4 being spaced a suitable distance fromthe port 25 as shown. The arch 4 is also spaced from the end walls ofthe casing, the ends of the partition being rounded. The parts whenassembled in a manner presently to be explained, form passages 5 ateither end of the casing 1 as will clearly be seen by reference to Fig.1.

A regulating sleeve 6 is rotatably mounted in the casing 1 the sleeve 6being open at one end and provided with a web 7 at the opposite end. Theweb 7 is provided with a series of ports or openings 8 which arearranged concentrically with the axis of the sleeve 6. Secured to theweb 70f the sleeve 6 is an axial stem 9 which isjournaled in aSpecification of Letters Patent.

Patented Uct. 24, 1916.

Serial No. 78,932.

bearing 10 in the end of the casing 1; an operating or controlling arm11 is secured to the stem 9 outside of the casing 1, the arm 11 beingshifted by a suitable connection which extends to a place withinconvenient reach of the operator. The stem 9 is enlarged adjacent to theweb 7 as indicated at 12, to space the web or head 7 from the adjacentend of the casing, and thus form one of the passages 5 previouslyreferred to.

The sleeve 6 above referred to is provided with a plurality ofsubstantially rectangular openings 13 which are rabbeted on their upperedges to form recesses 14 as shown in Fig. 4. The recesses 14 receivethe frames 15 of screens 16 which are of a mesh fine enough to atomizethe charge from the carbureter and the frames 15 are held in theirpositions in the recess 14 by solder or other convenient means. Ifconditions may make it expedient, the screens 16 may be laid in therecesses 14 and secured in place by solder, the frames 15 in such aninstance being omitted. The outer surface of the frame 15 lies flushwith the peripheral surface of the sleeve 6 and the inner edge of theframe is flush with the walls of the re cess 14. The screens 16 arecurved to correspond with the curvature of the periphery of the sleeve6, the ends of the frame 15 being similarly curved. Arranged within theeasing 1 is a pair of inner and outer concentrically disposed shells 17and 18 respectively, which form a pocket in which the controlling sleeve6 is located. The sleeve 18 bears against a suitably formed seat 19 atthat end of the casing adjacent the inlet port or opening 20 as well asagainst a similar seat in the partition 4. The shell 17 is provided withan annular flange 21 which is of a diameter equal to that of the sleeve18. The flange 21 engages the seat 19 as will be .seen in Fig. 1 andalso forms the closure for one end of the shell 18.

The flange 21 forms an abutment for the open end of the controllingsleeve 6 while the web 7 of the sleeve in turn forms an abutment for theend of the shell 17. The sleeve 6 is thus held, by the means justdescribed, in such a manner that it may easily be moved by the arm 11and yet the escape of gas around the joints is wellprovided against. Adowel pin 22 is inserted through the partition 4 and the shell 18 toprevent undesirable movement of the shell and a similar dowel pin 27 isinsertedspectively which are in normal registration but are adapted tobe closed by the rotatable sleeve 6. The openings 13 of the sleeve 6 areadapted to register with the openings 23 and 24 when the sleeve 6 isrotated, the area of the resultant passage between the openings beingproportional to the distance through which the arm 11 has been moved.The

, openings23 and 24 are disposed at approximately'rightangles with thecasing ports and although if more than two open ings .23 and 24 areprovided in the shells 17 and 18, the angles at which they will bedisposed in respect to the ports 20 and 25 will be correspondinglychanged. The openings 23 and 24 may be similarly rabbeted as are theopenings 13 in the sleeve 6 (see Fig. 4) screens 26 being placed in thelab beted portions as will clearly be seenin Fig.

2. The walls of the openings 23 and 24 are in radial alinement with eachother.

One end of the casing 1 is provided with an internally threaded opening28 into which a correspondingly threaded cap 29 is screwed. The cap 29isformed with a marginal flange 30 which engages the face of the openingand forms a tight closure at this point. The cap 29 has a plurality ofinternally disposed lugs 31 as shown in Fig. 1

' shell in position.

the inner faces of which engage the flange 21 of the shell 17, thusserving to retain the The gaseous mixture passes from the interior ofthe shell 17, around the lugs 31 and through the passage 5 indicated bythe arrows in Fig. 1.

Having described the construction of the device,- the operation thereofis as follows: The casing 1 is connected between the en- 'gine manifoldand the carbureter in the manner previously pointed out. The suction ofthe engine caused by the operation of the pistons, causes thegaseou'scharge to be drawn from the carbureter, through the port 20 into thecasing 1. The regulating sleeve 6 is turned a certain distance by meansof the arm 11, so as to permit the gaseous charge to pass through thescreens 26 of the shells 17 and 18 and the screens 13 of the rotatablesleeve 6 and thus cause the elements of the charge to thoroughlycommingle.

The charge enters the inner shell 17 from the passages '20 at both sidesof the casing through ports 12, 23 and 24 as shown in Fig. 2 and havingreached the interior of the shell 17, it passes through the openings 8in theweb 7 and out of the open end of the shell 17, through thepassages 5 and thereafter through the outlet port 25 to the en ginemanifold. The sleeve 6 may be rotated a gireater or lesser degreeaccordingly as the V a modification of the screen for the sleeve andshell openings may consist of a perfo' rate sheet of metal 32 which hasa frame like mounting which in turn rests in the rabbeted edge-34 of theopening 13 in a manner similarly used to hold the frame 15, shown inFig. 4,

\Vhilc the construction shown in the drawing constitutes the preferredform of the device, it is obvious that various modifications of thedevice may be made without departing from the spirit of the invention orthe scope of the claims.

7 I claim 1. A mixing device for internal combustion engines, comprisinga casing having at one end an internally threaded opening and havingoppositely arranged ports at right angles to the axis of the casing forconnec tion with the manifold of the engine and with the carburetor, a.partition extending transversely of the casing adjacent to thefirst-named port and spaced apart from the casing at its ends to formpassages at the ends of the casing, a pair of coaxial shells supportedin the casing the partition being curved to fit the outermost shell, theinner shell being spaced apart from the outer shell and having at theend of the casing provided with the opening, an annular rib or flangeabutting the outer shell, a sleeve fitting between the shells and havingat the end remote from the end opening of the casing an axial stemjournaled in the casing and ex tending outside of the same foroscillating the sleeve, each shell having oppositely ar ranged openingsand the openings of the shells registering, and said openings being in aline atright angles to the line connecting the ports of the casing, theshell having openings adapted to register therewith, and a screen ofperforate material over each opening of the shells and sleeve, and meansfor preventing rotation of the shells.

2. A mixing device for internal combustion engines, comprising a casinghaving oppositely arranged ports for connection with the manifold of theengine and with the carbureter, a pair of coaxial shells supported inthe casing and closing the space between the ports and spaced apart fromeach other, said shells having oppositely arranged openings in a line atright angles to the line connecting the ports. a sleeve mounted torotate between the shells and having openings adapted to register withthe openings of the shells, and means for oscillating the sleeve, eachopening of each shell and the sleeve having a covering of perforatematerial.

3. A mixing device for internal combustion engines, comprising a casinghaving oppositely arranged ports for connection with the manifold of theengine and With the carbureter, a pair of coaxial shells supported inthe casing and closing the space between the ports and spaced apart fromeach other, said shells having oppositely arranged openings in a line atright angles to the lines connecting the ports and a sleeve mounted torotate between the shells and having openings adapted to register withthe openings of the shells.

4. A mixing device for internal combustion engines; the combination ofan open ended casing, a pair of concentrically arranged shells havingopenings disposed in the casing so as to close the space between theopenings but leave passages at the sides thereof, a rotatable sleevehaving openings disposed between the shells the sleeve having anapertured Web adjacent to one of the passages the other end being infree co1nmunication with the other passage, perforate material over thesleeve and shell openings, and turning means for moving the sleeverelatively to the shells to separate the openings proportionately.

5. A mixing device for internal combustion engines, the combination ofan open end casing, a partition spaced from one casing opening and fromthe sides of the casing to leave side passages the partition having aseat, other seats being arranged adjacent to the opposite casingopening; an outer shell engaging the seats, a rotatable sleeve having anapertured web and an open end engaging the inner surface of the shell,an open ended inner shell. engaging the sleeve one end abutting thesleeve web the other end having a peripheral flange disposeu Iorabutment by the other end of the sleeve and one end of the outer shell,said shells and sleeve having openings, means for rotating the sleeverelatively to the shells and perforate material covering the openings.

HERBERT W. ALLEN.

@opies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

